Hidden Bell correlations in the four-level atom
Quantum Physics
2016-01-25 v1
Abstract
We extend the Bell inequality known for two qubits to the four-level atom, including an artificial atom realized by the superconducting circuit, and qudit with j=3/2. We formulate the extended inequality as the inequality valid for an arbitrary Hermitian nonnegative 4x4-matrix with unit trace for both separable and entangled matrices.
Cite
@article{arxiv.1601.06100,
title = {Hidden Bell correlations in the four-level atom},
author = {Margarita A. Man'ko and Vladimir I. Man'ko},
journal= {arXiv preprint arXiv:1601.06100},
year = {2016}
}
Comments
10 pages, Based on the invited talk delivered by M.A. Man'ko at the 46th Winter Colloquium on the Physics of Quantum Electronics (PQE-2016, January 3--8, 2016, Snowbird, Utah, USA), to appear in Journal of Russian Laser Research, Vol. 37, issue 1 (2016)